Speaker



FIG. 1 is a front right perspective view of the present invention;

FIG. 2 is a reduced top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof, the right side elevational view being a mirror image thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for a speaker, as shown and described. 